ltjclasses.dtx: Make ltjt*.cls compatible with \geometry, etc.

[luatex-ja/luatexja.git] / src / luatexja-core.sty

diff --git a/src/luatexja-core.sty b/src/luatexja-core.sty
index 5e676dd..4a5d3f0 100644 (file)
--- a/src/luatexja-core.sty
+++ b/src/luatexja-core.sty
@@ -148,6 +148,7 @@
 \newluatexattribute\jfam          % index for current jfam
 
 \newcount\ltj@dir@count           % counter for indicating direction
+\newcount\ltj@adjdir@count        % counter for indicating direction (for vadjust)
 \newluatexattribute\ltj@dir
 
 \ltj@dir=0
@@ -255,6 +256,11 @@
     luatexja.stack.hmode = -tex.nest[tex.nest.ptr].mode
   }%
 }
+\setbox0\vbox{%
+  \directlua{% This value depends on the version of LuaTeX.
+    luatexja.stack.vmode = -tex.nest[tex.nest.ptr].mode
+  }%
+}
 
 % prebreakpenalty = {<char_code>, <penalty>}
 \define@key[ltj]{japaram}{kcatcode}{%
@@ -535,20 +541,48 @@
 \newif\ifddir
 \protected\def\tate{%
   \directlua{luatexja.direction.set_list_direction(3, 'tate')}%
-  \ltj@dir@count=3\tdirtrue\ydirfalse\ddirfalse}
+  \ltj@reset@globaldefs\ltj@dir@count=3\relax
+  \ifvmode\ltj@adjdir@count=3\fi\tdirtrue\ydirfalse\ddirfalse\ltj@restore@globaldefs}
 \protected\def\yoko{%
   \directlua{luatexja.direction.set_list_direction(4, 'yoko')}%
-  \ltj@dir@count=4\ydirtrue\tdirfalse\ddirfalse}
+  \ltj@reset@globaldefs\ltj@dir@count=4\relax
+  \ifvmode\ltj@adjdir@count=4\fi\ydirtrue\tdirfalse\ddirfalse\ltj@restore@globaldefs}
 \protected\def\dtou{%
   \directlua{luatexja.direction.set_list_direction(1, 'dtou')}%
-  \ltj@dir@count=1\ydirfalse\tdirfalse\ddirtrue}
+  \ltj@reset@globaldefs\ltj@dir@count=1\relax
+  \ifvmode\ltj@adjdir@count=1\fi\ydirfalse\tdirfalse\ddirtrue\ltj@restore@globaldefs}
 \yoko
 
-%%%%%%%% \ifybox, \iftbox
-%%%%%%%% \ltjgetwd{<box_num>} etc. 
-\def\ltjgetwd{\expandafter\expandafter\expandafter\ltj@@getwd\ltj@grab@num}
-\def\ltjgetht{\expandafter\expandafter\expandafter\ltj@@getht\ltj@grab@num}
-\def\ltjgetdp{\expandafter\expandafter\expandafter\ltj@@getdp\ltj@grab@num}
+\newcount\ltj@adjdir@count@backup
+%%%% insert
+\let\orig@insert=\insert
+\protected\def\insert{\begingroup\afterassignment\ltj@@insert@A\ltj@tempcnta}
+\protected\def\ltj@@insert@A{\orig@insert\ltj@tempcnta\bgroup\aftergroup\endgroup\let\next}
+%%%% vadjust
+\let\ltj@@orig@vadjust=\vadjust
+\protected\def\vadjust{%
+  \ltj@@orig@vadjust\bgroup
+  \ifcase\ltj@adjdir@count\or\dtou\or\or\tate\or\yoko\fi
+  \aftergroup\ltj@@vadjust@check@dir\let\next}
+\protected\def\ltj@@vadjust@check@dir{%
+  \directlua{luatexja.direction.check_adjust_direction()}%
+}
+%%%% unhbox and unvbox
+\let\ltj@@orig@unhbox=\unhbox
+\let\ltj@@orig@unvbox=\unvbox
+\protected\def\unhbox{\begingroup\afterassignment\ltj@@unhbox\ltj@tempcnta}
+\protected\def\unvbox{\begingroup\afterassignment\ltj@@unvbox\ltj@tempcnta}
+\protected\def\ltj@@unhbox{%
+  \directlua{luatexja.direction.check_dir(\the\ltj@tempcnta)}%
+  \ltj@@orig@unhbox\ltj@tempcnta\endgroup}
+\protected\def\ltj@@unvbox{%
+  \directlua{luatexja.direction.check_dir(\the\ltj@tempcnta)}%
+  \ltj@@orig@unvbox\ltj@tempcnta\endgroup}
+
+%%%%%%%% \ltjgetwd<box_num> etc.
+%\def\ltjgetwd{\expandafter\expandafter\expandafter\ltj@@getwd\ltj@grab@num}
+%\def\ltjgetht{\expandafter\expandafter\expandafter\ltj@@getht\ltj@grab@num}
+%\def\ltjgetdp{\expandafter\expandafter\expandafter\ltj@@getdp\ltj@grab@num}
 \def\ltj@@getwd#1{%
   \directlua{luatexja.direction.get_box_dim('width', \the\numexpr#1\relax)}%
   \ltj@tempdima%
@@ -561,7 +595,9 @@
   \directlua{luatexja.direction.get_box_dim('depth', \the\numexpr#1\relax)}%
   \ltj@tempdima%
 }
+\let\ltjgetwd=\ltj@@getwd\let\ltjgetht=\ltj@@getht\let\ltjgetdp=\ltj@@getdp
 
+%%%%%%%% \ltjsetwd<box_num>=<dimen> etc.
 \protected\def\ltjsetwd{\begingroup
   \ltj@reset@globaldefs\afterassignment\ltj@@setwd@a\ltj@tempcnta}
 \def\ltj@@setwd@a{\afterassignment\ltj@@setwd@b\ltj@tempdima}
@@ -581,7 +617,14 @@
   \directlua{luatexja.direction.set_box_dim('depth')}%
   \ltj@restore@globaldefs\endgroup}
 
-
+%%%%%%%% \ifybox, \iftbox, \ifdbox
+\def\ltj@@box@cond#1#2\fi{\fi\csname if#1\endcsname}
+\def\ifybox#1{\directlua{luatexja.direction.dir_conditional(\the\numexpr #1\relax, 4)}%
+  \ltj@@box@cond{true}\else\ltj@@box@cond{false}\fi}
+\def\iftbox#1{\directlua{luatexja.direction.dir_conditional(\the\numexpr #1\relax, 3)}%
+  \ltj@@box@cond{true}\else\ltj@@box@cond{false}\fi}
+\def\ifdbox#1{\directlua{luatexja.direction.dir_conditional(\the\numexpr #1\relax, 1)}%
+  \ltj@@box@cond{true}\else\ltj@@box@cond{false}\fi}
 
 %%------------------ Load module for the format